NH engine is missing some awards when searching one-way, if there is no availability for the dummy return segment. (Since we'll get a "no results" modal, and never see the outbound award.) The multi-city search dialog doesn't have this problem, and can even take a +0 day return date. Return awards may still be hidden though, if there's no outbound availability, need to confirm if a separate search is required in that case.
NH engine is missing some awards when searching one-way, if there is no availability for the dummy return segment. (Since we'll get a "no results" modal, and never see the outbound award.) The multi-city search dialog doesn't have this problem, and can even take a +0 day return date. Return awards may still be hidden though, if there's no outbound availability, need to confirm if a separate search is required in that case.